Hugo fuchs



Patented Mar. Z3, 1897.

H. FUCHS. RIVBTING MAGHINB.

(Nd Model.)

llNirn Freres HUGO FUCHS, OF BERNBURG, GERMANY.

RlVETlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 579,478, dated March 23, 1897.

Application filed February 28, 1896. Renewed February 17.1897. Serial No. 623,901.

February 11,1894,No. 78,091.

(No model Patented in Germany To @ZZ 'whom it may concern.:

Be it known that I, HUGO FUCHS, a subject of the Duke of Anhalt, residing at Bernburg, in the Duchy of Anhalt, German Empire, have invented certain new and useful Improvements in Riveting-Machiues, of which the following is a specification.

This invention has been patented inv Germany, No. 78,091, dated February 1l, 1894.

The invention refers to a machine for the manufacture of rivets from a strip or length of wire fed automatically to a machine which cuts off and rivets one extremity of the same to a plate of metal.

Figure l shows a profile View of the machine. Fig. 2 is a plan thereof, and Fig. 3 a front view. Figs. 4, 5, 6, and 7 show details of the wire-cutting devices, the first three figures showing plan views of the dies in different positions and the latter a sectional View. Figs. 8 and 9 show views of the strip with the rivets in place. Fig. 10 is a detail sectional view of the riveting devices.

As soon as the clutch a has been thrown into gear by means of a foot-lever power is transmitted through ordinary mechanism from the driving-shaft a to feed the wire 72- for a determined length. After the wire is thus fed it is cut off the proper length by a cutting device consisting of a cutting-die h and a .counter-die h2, both held in position by the flanges h3 h4 and shifting upon the table hs. The cutting-die 7i is actuated by the anglelever d2, which turns around a vertical pivot d3 and carries a roller at its extremity. This -carrying-roller is dependent upon the action of the curved disk cl, connected with the toothed wheel b4. The latter is put in motion by the main shaft a through the wheels b3 a3. The cutting-die 7L commences to work when the counter-die h2 has comenext to the aperture 7i in the tables and next to the piece of wire projecting through the same. It then cuts off the piece of wire projecting through the aperture b9, while at the same time the counter-die h2 moves back and holds the cutoff piece of wire with the aid of the cuttingdie h'. The counter-die h2 is fixed to the rod b9, which is guided straight and is operated by the spring blo and by the side arm bs of the angle-levert@ pivoted at 57,

l the toothed wheels b3 and as.

The lever las carries a roller b5 on its upper arm, which is operated by the cam b'. The operation of shaft b and shaft d is caused by After the cutting-die h has cut off the piece of wire it bringsthe same over the opening 7i of the table hs and between the rivetinnlunfrers 'm m', during which operation the counter-die h2 presses firmly against the piece of wire.

In the riveting apparatus the upper plunger m is worked by the smaller' lever-arm 7e' of the lever K, which oscillates on the shaft i',

and the carrying-roller 7a2 of which is oper-` ated by the cam b2 of the shaft b. The lower plunger m is worked in the same manner by the short arm Z of the lever Z, pivoted on the shaft i3, and the carrying-roller Z2 of which is operated by the cam Z5 of the shaft c, against which the carrying-roller is held by the spring Z4. The working of these plungers fm m is regulated in such a manner that the plunger 'm presses the piece of wire against the plunger m. While the piece of wire is over the op-ening hg, as shown in Figs. 6 and 7, the machine is automatically put out of gear by the fact that the pin n of the lever n sinks into the recess c5 of the disk c4, connected with the shaft c, by the action of the spring a5, whereby the clutch ci releases the corresponding clutch of the drivingdisk and the machine is stopped. The Workmen will now have time to slip the perforated plate in which the stayrivet is to be inserted over the end of the wire h, resting the plate upon the supporting projections 71,5 h6. If the plungers m m are then put in operation,they will form the heads o o', Fig. 8. The stem o2, Figs. 8 and l0, of the bolt will remain upright between the dies 7i h2, Figs. 8 and l0, and a third flange or rib o3 will be formed at a point on the rivet directly beneath the plate equal to the thickness of the projections h5 h6, as the met-al can freely spread sidewise, and this rib forms a counter-holder for the head o. This rib or llange o3, together with the head o', holds the rivet to the metal strip, leaving the stud o: and head o projecting for engaging any other part to be attached to the strip.4

When the riveting is completed, the riveting-plungers m m move together again. The cutting-die h then moves backward alone, in

IOO

order that the plate can be removed, and the counter-die h2 will again locate next to the aperture 717, after which the described operation is completed.

As shown in Fig. l, the Wire is fed step by step through rollers operated step by step by pawl-and-ratehet mechanism X, which is in turn actuated through connections to the Working parts of the machine.

The construction of the disk d for operating the cutting-die lever is shown in Fig. 2, one inclined edge being represented at l, While the other inclined edge is shown in dotted lines at 2, adjacent to the roller on the lever d2 and ready to act thereon.

The article produced by my machine and shown in Figs. S and 9 may serve as a lacing strip'or steel for use in corsets, the projecting` parts of the rivets serving as lacing-studs.

I claim- 1. In a riveting-machine for forming and setting rivets in metal or like strips the combination of the cutter for the Wire, and plungers, rests for the strip to receive the rivets having a space between their opposing ends of greater Width than the diameter of the rivetshank, said parts operating to form the heads 0, 0 and the intermediate flange or rib 0.3, substantially as described.

2. In combination, the cutter h and holder h2, the rests h5, h above the cutter and arranged to receive and hold the strip at a distance from the cutter and the plungers m, fm With operating means therefor to form the heads and the intermediate flange o3, the said plungers operating on each, side of the cutter and holder While the same are holding the Wire stud 02, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of tWo subscribing witnesses.

HUGO FUCHS.

Witnesses:

JULIUs MUTH, M. C. MUTH. 

